I just bought a Mercedes SLK and the roof went up and down fine. It snowed yesterday and all of a sudden the roof will not go down. The windows go down and the trunk opens, but the roof will not move at all. When i close everything the two back windows go up but the door windows do not i have to manual put them back up. Does anyone know if the snow is a factor in this or is there something mechanically wrong with my car? Thanks